Johann schmidt



(No Model.)

J. SCHMIDT. Hand Stamp.

No. 240,773. Patented-April 26,1881.

' wheel a, and at or near its center with bearpartment or well 0 c 0 being provided with ,in rear of said wells. The inking-rolls are cov- UNITED STATES PATENT OFFICE.

JOHANN SCHMIDT, OF VIENNA, AUSTRIA.

HAND-STAMP.

SPECIFICATION forming part of Letters Patent No. 240,773, dated April 26, 1881.

Application filed March 25,1880.

To all whom it may concern Be it known that I, JOIIANN SCHMIDT, of Vienna, Austria, manufacturer, have invented new and useful Improvements in Colored Inr pression-Stamps, of which the following is a specification.

My invention relates to improvements in hand-stamps adapted for printing letters, figures, and words, either in a single color or in different colors, and is applicable to stamps having a rotating cylindrical printing-surface or to stamps having a flat printing-surface; and it consists in certain details of construction, substantially as hereinafter described, and shown in the accompanying drawings, in which Figure 1 is a side elevation of a hand-stamp having a cylindrical type-wheel. Fig. 2 is a like View, the outer casing thereof being removed. Fig. 3 is a top-plan view of the inkwells, and Fig. 4 is a longitudinal transverse section of the stamp.

A represents a casing of suitable material (preferably sheet metal) and form, provided in its front portion with bearings for the typeings for an inking-roll, behind which is located the ink-well.

WVhether the stamp is used for printing with one color or with several colors, I prefer to employ a series of ink-rollers, I) 1) 0 arranged upon a common shaft, and in communication with a like series of ink-wells, c 0 0 located ered with any preferred or suitable absorbing material, and receive the ink from the inkwell through the narrow aperture or slit or series of superposed perforations a, Fig. 2. The ink-well is preferably made of sheet metal and partitioned off into as many wells as there are ink-rollers and annular type-grooves upon the type-wheel, and each compartment or sep arate ink-well may thus be filled with an ink of different color, or they may all be filled with ink of the same color, as desired, each coma filling-aperture, 1:, Figs. 2 and 8.

Instead of filling the wells with ink, they may be filled with an absorbent material, such as sponge, felt, cotton, or other like material,

and the latter may be saturated with the ink,

(No model.)

in which case the openings or slit n is made a little wider, to permit the ink-roll to take up the ink more readily.

The filling-apertures a may be closed by means of a stopper, screw, or other like device, preferably by means of a washer, S, of india-rubber or leather, held in position by the metallic plate 1), which latter is secured upon the end 1" of the casing by the screw g.

In practice I prefer to make one of the sides of the casing A removable, and the arms of the lid (1 of elastic or spriu g metal, and screwthread the outer end of the type-wheel shaft, and hold the parts in position by means of nuts applied to the outer ends of said shaft, that project through the casing, and upon which the arms of said lid are hung. The inkwell is not rigidly connected with the casing, which is provided with beads or projections a a which, together with the end 0' of said casing, serve to confine the ink-well in proper position. In this manner, by unscrewing the nut and removing the lid (1, the side of the casing A may be removed and access had to all the interior mechanism, which may then be removed for cleaning or other purpose; or the side of the casing A may be held in position by means of screws or in any other desired manner, so that it may be readily removed. Below the type-wheel a the casing has a segmental opening, which may be closed by a correspondiugly-formed plate, (I, loosely mounted upon the type-wheel shaft, said plate being held in position, when removed from the opening, by frictional contact with the casing A, or in any other preferred manner. The type-wheel a is made of one piece, and is pro vided with a series of annular dovetailed grooves for the reception of the dovetailed body of the type 1, within which groove the type is held by a screw havin a conical head, the blank spaces required being tilled by any requisite number of spaces or quads having, like the type, a dovetailed body. It will be seen that by this means the type is set and fixed in the type-wheel with great facility and rapidity. The type-wheel has on its opposite sides projecting annular rims b, the faces of which are flush with the face of the types, and which serve as guides, whereby the type-wheel is applied correctly to the paper to insure a perfect and clean impression. The type-wheel has a recess, f, to facilitate the insertion of the type into the dovetailed grooves, and before an impression is taken the wheel should be brought into such a position that the recess f will be on its under side, or upon the paper, as shown in Fig. 2. If the stamp is now moved in the proper direction to revolve the typewheel, the recess f, upon arriving at the inking-roll, will impart to the apparatus a slight jarring, which will indicate to the operator that the printing has been eft'eeted-i. 0., that the type-wheel has made a complete revolution, or practically so, and thus serve as a stop and guide for the printing.

The type employed is preferably molded or swaged of one piece, and instead of providing the type-wheel with a series of annular dovetailed grooves, these grooves may be formed transversely of the type-wheel in parallel rows around its circumference, and this arrangement and construction of type is applicable to either form of hand-stamps, whether provided with a typewheel ora fiat printing-surface or type-plate.

The roller or rotating stamps may be constructed as such or in combination with a pocket-knife, pocket match-safe, or in the form of a medallion.

Having now described my invention, what I claim and desire to secure by Letters Patent, 1s

1. In a hand-stamp, the combination, with the casing A, screw q, plate 12, and washer S, of one or more ink-wells provided with fillingapertures 20, substantially as described, for the purpose specified.

2. The combination, in a hand-stamp, of the casing A, provided with lips or projections a, the retaining-screw q, and the plate p, with the ink-well or ink-wells, substantially as described, for the purpose specified.

In witness that I claim the foregoing I have hereunto set my hand this 12th day of February, 1880.

JOHANN SCHMIDT.

Witnesses HENRY PALM, VERNER S. TINGLEY. 

